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A laboratory under the Defence Research & Development Organisation (DRDO), Ministry of Defence involved in Structural Engineering and its scope of work includes developing new designs, materials etc for Bridges.

The Research, Design & Standards Organisation (RDSO)

An autonomous body under the Ministry of Railways, Govt. of India

A single body responsible for maintaining and drafting standards for all the materials being used by Indian Railways.

Also involved in Research & Design for new materials, designs etc for the Railways. It has various directorate, each of which individually handles functions.

The Bridge & Structure Directorate of the RDSO was involved during the Project.

1997 : Enquiry received by Permali Wallace Ltd. From R&D Engineers. After a series of Techno-commercial discussions, PWL was then chosen as the Industry Partner. The design was finalized after series of sessions by all the above.

May, 1998 : Formal PO for manufacturing 12 Sleepers received.

Aug.,1998 : 1st Prototype of the sleeper submitted to R&D Engineers . After initial inspection remaining 11 were produced and submitted

1998-99 : These sleepers were given to RDSO for Extensive Static & Dynamic Testing by R&D Engg.. These sleepers withstood testing upto 2 million cycles and were then withdrawn. They were found to be in perfect state.

2000 : RDSO placed an order for 44 nos. sleepers vide their order no. SP3/0062/B&S/0048

2001 : These were supplied to RDSO for extensive field trial between Feb. & May, 2001

First 22 fitted by Northern Railway at Najimabad on 15/04/01

Next 22 fitted by South Eastern Railway at Chengail on 8/6/01

2002 : The sleepers have given excellent performance to date – acknowledged by RDSO vide their letter to us and also recommended the product for approval vide their letter no. CBS/DSD dt. 31/5/02

These electrically insulating Fish Plates are used in the marshalling yards of Railways where automatic track signaling is in use. The Fish Plates are mechanically strong and join the two rails and simultaneously insulate them electrically

An undercarriage Fitment, when assembled with other components is used on Metro rail. The assembly collects current, from the third rail laid next to the main rails, to be transmitted to the traction motors. This is a critical component since human safety is involved in the application.